Batista, Carolina de Sousa Américo, et al. “Seroprevalence of Leptospirosis in Stray Dogs from Patos City, State of Paraíba, Brazil”. Brazilian Journal of Veterinary Research and Animal Science, vol. 41, no. 2, Apr. 2004, pp. 131-6, https://doi.org/10.1590/S1413-95962004000200009.